Help ID this 603e module - 180MHz for 1400?

[Bunsen]

Motorola 603 processor XPC603PRX180RE on IC-China's ebay store. Has three. US $5.95 BIN and flat $6 shipping.

Possibilities: 166MHz module from a 1400 (which were downclocked 180s), or 180MHz module from a 2400 or 3400? Or the rare 180MHz 1400 upgrade?

This image of a NuPower 183 MHz CPU from the link above certainly suggests it's for a 1400.

 

[Byrd]

Hey Bunsen,

I think you're on the money with it being the stock Apple 166Mhz 603e CPU (180Mhz part downclocked) from a 1400/166 - as evidenced by the link below (bottom of page):

http://www.kevinomura.com/powerbooks/powerbook1400/index.html

The four yellow tantalum capacitors have the same silk-screened names.

Still, a good price for lethargic 117Mhz machines if you downlock the multiplier to 4X (the ROM on 117 and 133Mhz machines don't detect the 166Mhz CPU unless this is done)

JB

 

[Bunsen]

Lethargic and cacheless!

Instructions for the downclock are at the link in the first post. Upgrading a 133 to 166 is a straight swap. So have at them comrades! I don't need one.

When searching for images of the module I came across this epic overclocking kludge

 

[LCGuy]

I second Byrd - it looks identical to both of my 166 Mhz modules. Also, if you take a closer look, it has "APPLE COMPUTER INC" silkscreened next to the 603e, so its an Apple part...Apple never made any CPUs for the 1400 faster than 166 Mhz.

 

[Bunsen]

Down to the last one as of this posting